''Sinezona rimuloides'' is a
species of minute
sea snail
Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the ...
, a
marine
Marine is an adjective meaning of or pertaining to the sea or ocean.
Marine or marines may refer to:
Ocean
* Maritime (disambiguation)
* Marine art
* Marine biology
* Marine debris
* Marine habitats
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* Marine pollution
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* ...
gastropod
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda ().
This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...
mollusk or
micromollusk
A micromollusk is a shelled mollusk which is extremely small, even at full adult size. The word is usually, but not exclusively, applied to marine mollusks, although in addition, numerous species of land snails and freshwater mollusks also ...
in the
family Scissurellidae, the little slit snails.
[Rosenberg, G. (2012). ''Sinezona rimuloides''. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=492827 on 2013-02-16]
Description
The shell attains a height of 0.8 mm.
(Original description by Carpenter) This beautiful little species is the first known from America. It looks like a ''
Velutina'' crossed by sharp ribs in the direction of the slanting mouth. In the first
whorl
A whorl ( or ) is an individual circle, oval, volution or equivalent in a whorled pattern, which consists of a spiral or multiple concentric objects (including circles, ovals and arcs).
Whorls in nature
File:Photograph and axial plane floral ...
the ribs are very close. It then assumes its normal
sculpture, but there is nearly a whorl before there is any trace of incision. This appears to have begun as a slit, which was afterwards closed up. A band, marked off by ten transverse ribs showing stages of growth, encircles the shell as far as the hole, which is long and somewhat rectangular; but there is no band between the hole and the outer
lip.
Capenter P. (1872) The Mollusks of Western North America, Smithsonian Institution, Washington
(described as ''Scissurella rimuloides'')
Distribution
This species occurs in the Pacific Ocean from California, USA to Chile; off the Galápagos Islands.
References
External links
Biodiversity Heritage Library (2 publications)
Encyclopedia of Life
ITIS
World Register of Marine Species
{{Taxonbar, from=Q3730822
Scissurellidae
Gastropods described in 1865